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From "eric chacon" <>
Subject Re: JNDI Datasource in Tomcat
Date Mon, 07 May 2001 14:44:21 GMT

I am using Postgresql (7.0.2)--and (here's the kicker), I'm using PoolMan 
1.4.1, which doesn't have an XML file.

I've done some work with the 2.0 beta, but I ran into a problem that appears 
to be fixed in 2.1, but I haven't had a chance to test it yet.

I hope to play with this sometime in the next month, and I'll let you know 
if I come up with anything.


>From: Dave Weis <>
>Subject: Re: JNDI Datasource in Tomcat
>Date: Mon, 07 May 2001 08:32:37 -0500
>Which database drivers are you using with poolman? I'm trying to use
>Oracle, but it's giving me null pointer exceptions when I run the test.
>Could you send your poolman.xml file?
>eric chacon wrote:
> > You'll need some connection pooling software which doesn't appear to 
> > bundled with Tomcat.  There are several open-source connection pools.
> >
> > I've used PoolMan (, and found it to work pretty 
> >
> > I did have a problem using JNDI, which I never successfully resolved,
> > however:  to make a Datasource (or any object) available through JNDI, 
> > need to set up a proper security policy.  I was never able to deploy a
> > datasource that my servlets could read.
> >
> > Most connection pooling software packages don't require that you use 
> > (they come with propietary configuration files and such).
> >
> > Note: If you use a full J2EE solution such as Enhydra or JBoss (both of
> > which come bundled with Tomcat), then they'll set up your data sources 
> > you (you modify some XML files), and you're good to go.
>Dave Weis
>businessolver, Inc.

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